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Dan Goodman's prediction and politics journal.

Wednesday, July 14, 2004

Science News

From EurekAlert http://www.eurekalert.org/pubnews.php:
Public Release: 13-Jul-2004
Astrophysical Journal
Los Alamos computers probe how giant planets formed
Nearly five billion years ago, the giant gaseous planets Jupiter and Saturn formed, apparently in radically different ways. So says a scientist at the Laboratory who created exhaustive computer models based on experiments in which the element hydrogen was shocked to pressures nearly as great as those found inside the two planets.
Department of Energy, National Nuclear Security Administration

'Working with a French colleague, Didier Saumon of Material Science (X-7) created models establishing that heavy elements are concentrated in Saturn's massive core, while those same elements are mixed throughout Jupiter, with very little or no central core at all. The study, published in this week's Astrophysical Journal, showed that refractory elements such as iron, silicon, carbon, nitrogen and oxygen are concentrated in Saturn's core, but are diffused in Jupiter, leading to a hypothesis that they were formed through different processes.'

Public Release: 14-Jul-2004
Babies get hands-on with language
Is baby babbling more than just random noise? American researchers claim that babies exposed to sign language (even if they're not deaf) learn to babble using their hands, in a functionally identical way to verbal babbling. If the claim is right, it would support the idea that human infants have an innate sensitivity to the rhythm of language, and engage it in any way they can.
New Scientist
Public Release: 13-Jul-2004
Proceedings of the National Academy of Sciences
A new study of wild chimpanzee growth rates suggests that early human evolution may have taken a different course than is widely believed.
LSB Leakey Foundation

'The results challenge the assumption that human evolution followed a path from a chimplike ancestor to a transitionary Homo erectus and then Homo sapiens, suggesting instead that chimpanzees have more in common developmentally with Homo erectus and that modern humans are the "out-group."'

Public Release: 13-Jul-2004
Social Science and Medicine
Rural African men claim AIDS as sign of masculinity
Many rural African men unknowingly claim to have AIDS, thinking it is an indicator of their masculinity and sexual prowess, says a University of Alberta researcher. Dr. Amy Kaler, from the U of A's Faculty of Arts investigated the ways that young men in rural southern Malawi, Africa talk about HIV and their own perceptions of risk.

Public Release: 13-Jul-2004
Journal of Acquired Immune Deficiency Syndromes
Africans take anti-HIV meds at a higher rate than many anticipated
Contrary to widespread assumptions, UCSF researchers have found that an HIV-infected African cohort successfully followed a medication regimen, taking almost all of the anti-HIV drugs as prescribed and at a rate as high or higher than observed in published studies of HIV-infected cohorts in rich countries.
NIH/National Institute of Mental Health, UC San Francisco/Gladstone Institute for Virology and Immunology Center for AIDS Research, Fogarty International Training Program, Doris Duke Charitable Foundation
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